Invention Grant
US08942278B2 Systems and methods for detecting data collisions for a near field communication system
有权
用于检测近场通信系统的数据冲突的系统和方法
- Patent Title: Systems and methods for detecting data collisions for a near field communication system
- Patent Title (中): 用于检测近场通信系统的数据冲突的系统和方法
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Application No.: US13791737Application Date: 2013-03-08
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Publication No.: US08942278B2Publication Date: 2015-01-27
- Inventor: Koorosh Akhavan , RaviKiran Gopalan , Eunmo Kang , Le Nguyen Luong
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kevin T. Cheatham
- Main IPC: H04B3/46
- IPC: H04B3/46 ; H04B17/00 ; H04B5/00 ; H04Q1/20
Abstract:
In a wireless near field communication (NFC) system, a target, such as a smart card, can communicate with an initiator, such as a card reader, by load modulating a radio frequency (RF) signal generated by the initiator. When two or more targets load modulate the RF signal generated, “collisions” can occur with the load modulation. Apparatus and methods detect the presence or absence of collisions in a lower layer or physical layer and report the presence of detected collisions to an upper layer for further handling.
Public/Granted literature
- US20140086292A1 SYSTEMS AND METHODS FOR DETECTING DATA COLLISIONS FOR A NEAR FIELD COMMUNICATION SYSTEM Public/Granted day:2014-03-27
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